I am currently using the following snippet of code to retrieve bond holding information via EMAXX for specific bonds RICs:
for key in unique_bonds_dict.keys():
try:
df, err = ek.get_data([key], ['TR.H.HoldingCompanyName.HoldingCompanyName','TR.H.PARHELD', 'TR.H.REPORTDATE'])
except:
time.sleep(5)
df, err = ek.get_data([key], ['TR.H.HoldingCompanyName.HoldingCompanyName','TR.H.PARHELD', 'TR.H.REPORTDATE'])
The issue is that a firm may have many bonds outstanding, and looping through the RICs is:
1) Very taxing on performance, as API calls need to be spaced via a time sleep of 5 seconds in case of errors
2) Increases chance of failed API responses (which unfortunately escape the try and except mechanism
These are the RICs I am for example trying to source, which relate to only ten firms' outstanding bonds:
['084670BF4=', 'US154879285=', '084670BJ6=', '084670BR8=', 'US120067095=', 'US215001784=', 'US138033414=', 'US204933138=', 'US213305611=', 'US215001865=', '084670BS6=', 'US232901462=', 'US204935041=', 'US120067907=', 'US215002004=', 'US138033422=', 'US204940436=', 'US215002098=', 'US232901497=', 'US204940975=', 'US120067966=', 'US204941009=', 'US215002195=', 'US228078077=', 'US232901535=', '084670BK3=', 'US204941025=', 'US215002217=', '084670CS5=1M', '03755LAC8=', 'US182760072=', '163851AE8=', '163851AF5=', 'US225210918=', 'US237609433=', '163851AH1=', '16677JWD4=', '16677JWE2=', '16677JWF9=', '16677JWG7=', '16677JWH5=', '16677JWL6=', '16677JWM4=', '16677JWN2=', '16677JWP7=', '16677JWT9=', '16677JWU6=', '16677JWV4=', '16677JWW2=', '16677JX50=', '16677JX84=', '16677JXC5=', '16677JXE1=', '16677JXF8=', '16677JXJ0=', '16677JXK7=', '16677JXL5=', '16677JXM3=', '16677JXN1=', '16677JXS0=', '16677JXU5=', '16677JXV3=', '16677JY91=', '16677JYA8=', '166764AP5=', '166764AU4=', '166764AT7=', '166764BN9=', '166764BM1=', '166764AB6=', '166764BV1=', '166764BU3=', '166764BK5=', '166764AH3=', '166764BT6=', '166764BW9=', '166764BD1=', '166764BL3=', '166764BX7=', '166764BY5=', '166764BZ2=', '166764CA6=', '26082MW86=', '26082MWD5=', '26082MWF0=', '26082MWG8=', '26078JAB6=', '26078JAH3=', '26078JAC4=', '26078JAD2=', '26078JAE0=', '26078JAF7=', '278865AY6=', '278865AU4=', 'US152985932=', 'US125543375=', '278865AV2=', '278865BD1=', '278865BE9=', '278865BF6=', '278865AM2=', '278865AW0=', '278865BA7=', '278865BG4=', '278865BH2=', 'US236779084=', 'JP00105020=', 'JP01015020=', 'JP00035012=', 'JP00045020=', 'JP00065020=', 'JP03015020=', 'JP00095020=', 'JP00075012=', 'JP00115020=', 'JP01025020=', 'JP00135020=', 'JP02015020=', 'JP02025020=', 'JP00145020=', 'JP01035020=', 'JP03025020=', 'JP02035020=', '30229AW88=', '30229AWA3=', '30229AWD7=', '30229AWE5=', '30229AWG0=', '30229AWH8=', '30229AWM7=', '30229AWN5=', '30229AWP0=', '30229AWQ8=', '30229AWT2=', '30229AWU9=', '30229AWV7=', '30229AWW5=', '30233WNQ4=', '30229AX12=', '30229AX46=', '30229AX53=', '30229AX79=', '30229AX87=', '30229AXC8=', '30229AXE4=', '30229AXJ3=', '30229AXK0=', '30229AXL8=', '30229AXM6=', '30229AXN4=', '30229AXR5=', '30229AXS3=', '30229AXV6=', '30229AY11=', '30229AY29=', '30229AY37=', '30229AY52=', '30229AY86=', '30229AYA1=', '30229AYC7=', '30229AYF0=', '30229AYG8=', '30229AYH6=', '30229AYJ2=', '30229AYN3=', '30229AYP8=', '30229AYQ6=', '30229AYS2=', '30229AYV5=', '30229AYW3=', '30229AZ10=', '30229AZ28=', '30229AZ36=', '30229AZ69=', '30229AZ77=', '30229AZA0=', '30229AZD4=', '30229AZE2=', '30229AZG7=', '30229AZM4=', '30229AZN2=', '30229AZP7=', '30229AZW2=', '30229AZX0=', '30229BA31=', '30229BAB3=', '30229BAD9=', '30229BAJ6=', '30229BAK3=', '30229BAM9=', '30229BAQ0=', '30229BAU1=', '30229BAX5=', '30229BB14=', '30229BB71=', '30229BBB2=', '30229BBE6=', '30229BBP1=', '30229BC13=', '30231GAJ1=', '30231GAK8=', '30229BCE5=', '30229BD12=', '30229BD87=', '30229BDC8=', '30229BDJ3=', '30229BDN4=', '30231GBB7=', '30231GBA9=', '30231GAR3=', '30231GBL5=', '30231GAC6=', 'US219632215=', '30231GBC5=', '30231GAF9=', '30231GBH4=', '30231GAT9=', '30231GBD3=', '30231GBJ0=', 'US219632231=', '30231GBE1=', '30231GBK7=', '30231GBN1=', 'US219632240=', 'US219632401=', '30231GAY8=', '30231GBF8=', '30231GAN2=', '30231GAW2=', '30231GAZ5=', '30231GBG6=', '30231GBM3=', '60706HAJ2=FINR', 'IVL19PA=TS', 'THIVL21OA=', 'THIVL21OB=', 'THIVL21OC=', 'THIVL224A=', 'THIVL224B=', 'THIVL225A=', 'IVL22OA=TS', 'THIVL22DA=', 'THIVL236B=', 'THIVL236A=', 'THIVL243A=', 'THIVL245A=', 'IVL24NA=TS', 'THIVL24DA=', 'IVL256A=TS', 'IVL25OA=TS', 'THIVL25NA=', 'IVL25DA=TS', 'THIVL26OA=', 'THIVL275A=', 'IVL27NA=TS', 'IVL27NB=TS', 'THIVL286A=', 'THIVL28OA=', 'THIVL295A=', 'THIVL306A=', 'THIVL30NA=', 'THIVL31OA=', 'IVL32NA=TS', 'THIVL336A=', '552081AH4=', 'NL063342025=', '552081AK7=', '552081AM3=', '64016AAA3=', 'NL022628569=', 'US022662805=', '64016AAC9=', 'DE051333683=', 'DE051333535=', 'DE051333250=', 'US102894197=', '58933YAQ8=', '589331AT4=', '58933YAF2=', '58933YAU9=', 'US151305555=', '58933YAR6=', '589331AC1=', '58933YAY1=', 'US102894111=', '589331AD9=', '589331AE7=', '58933YAX3=', '58933YAZ8=', '806605AG6=', 'US102894189=', 'US151306241=', '589331AM9=', '806605AH4=', '58933YAV7=', '589331AQ0=', '58933YBA2=', '589331AS6=', '58933YAJ4=', '58933YAT2=', '58933YAW5=', '58933YBB0=', '718546AA2=', 'US063342629=', '718546AC8=', '718546AU8=', '718546AY0=', '718546AX2=', '718546AV6=', '718546AZ7=', '718546AR5=', '718546AW4=', '718546AK0=', '718546AF1=', 'US075780966=', '718546AH7=', '718546AL8=', '960413AF9=', '960413AX0=', '960413AH5=', 'US147164203=', '960413AT9=', 'US202810403=', '960413AW2=', '960413AY8=', '960413AS1=', '960413AU6=', '960413AZ5=', '960413BA9=', 'FR0127007252=', 'FR0127007260=RRPS', 'FR0011651389=', 'FR0013425170=', 'FR0012452191=', 'FR00140005T0=', 'FR0013252277=', 'FR0013464815=', 'FR0013478252=', '05526LW86=', '05526LWG8=', '05526LWL7=', '05526LWN3=', '05526LWP8=', '05526LWQ6=', '05526LWT0=', '05526LWU7=', '05526LWV5=', '05526LWW3=', '05526LX10=', '05526LX44=', '05526LX51=', '05526LX69=', '05526LX85=', '05526LXF9=', '05526LXS1=', '05526LY27=', 'DE155100176=', 'DE184174561=', 'DE086068311=', 'DEA2BPEV=', 'DEA2BPEU=', 'DE218231888=', 'DE150033799=', 'DE101783324=', 'DE154842284=', 'DE182350265=', 'DE093207971=', 'DE218231934=', 'DE171841810=', 'DE153910979=', 'DE196027793=', 'DE182350257=', 'DE137499428=', 'DE149769196=', 'DE150888565=', 'DE154838759=', 'DE088539958=', 'DE093230710=', 'DE186407458=', 'DE171841771=', 'DE088866720=', 'XS1864163925=LU', 'DE137774593=', 'DE218880568=', 'DE218880584=', '166754AQ4=', 'US173567839=', '166754AW1=', 'US215105423=', 'US152602723=', '166754AP6=', '166754AS0=', 'US173567774=', '50000DW85=', '50000DW93=', '50000DWA0=', '50000DWD4=', '50000DWE2=', '50000DWF9=', '50000DWG7=', '50000DWM4=', '50000DWN2=', '50000DWP7=', '50000DWQ5=', '50000DWT9=', '50000DWU6=', '50000DWV4=', '50000DWW2=', '50000DX19=', '50000DX43=', '50000DX50=', '50000DX68=', '50000DX76=', '50000DX84=', '50000DXD3=', '50000DXE1=', '50000DXJ0=', '50000DXM3=', '50000DXN1=', '50000DXR2=', '50000DXU5=', '50000DXV3=', '50000DY18=', '50000DY83=', '50000DYW0=', '50000DZ17=', '50000DZ25=', '50000DZ33=', 'SA198211826=', '80414L2A2=', '80414L2G9=', 'SA226285270=', 'SA198211281=', '80414L2C8=', '80414L2H7=', 'SA226285300=', 'SA198211320=', '80414L2D6=', '80414L2K0=', 'SA226285326=', 'SA198211346=', '80414L2E4=', 'SA198211613=', '80414L2F1=', '80414L2L8=', 'SA226285334=', '80414L2M6=', 'SA226285342=']
My question is whether there is a way to perform and aggregated search for these all at the same time? Or whether there is a better way to do this? I am particularly keen to understand how I can avoid the failed API responses.
Thanks!