How can i pass the requests body in the original order when the body dictionary is declared in python

Question

I got stuck when I try to send a post request with a large body dictionary. Here is the code.

body = {"session":{"user":{"user_id":"user1"}, \
"equipment":{"equipment_id_alternate":{"alternate_equipment_id_type":"sms_address", \
"alternate_equipment_id":"equipmentid1"}, \
"extensions":[{"extension_type":"string","name":"device_type","value":"PC_Apple"}, \
{"extension_type":"string","name":"device_id", \
"value":"equipmentid1"}]}, \
"content":{"content_type":"http_broadcast_channel", \
"uri":"http://xyz/abc.m3u8", \
"extensions":[{"extension_type":"integer","name":"bandwidth","value":0}, \
{"extension_type":"string","name":"stream_quality","value":"HD"}, \
{"extension_type":"string","name":"session_type","value":"Live_Linear_Companion"}]}}, \
"sa_version":"sa_http_v_1_0_1","request_type":"setup_request", \
"authentication":{"auth_algorithm":"sa_hmac_token_v_1_0_1","auth_message_algorithm":"sa_http_auth_message_v_1_0_1", \
"auth_token_start":"2016-11-23T19:49:56Z","auth_token_expiry":"2016-11-30T19:49:56Z", \
"auth_token":"abdcwgegegegege"}}

header19 = {some keys and values}
api19 = requests.post(url19, json=body, headers=header19)

I want to pass the request body the same order as it is declared, how can i achieve it?

I see a lot of similar questions and replies saying that you can use collections.orderDict(); However I do not know how I can use it properly without declaring each key and value pair using collections.orderDict().

Thanks.

I suggest removing your `auth_token` value from the question body :) — Amin Etesamian, Nov 28 '16 at 19:29
@AminEtesamian, thanks, actually that is machine generated token and cannot used anywhere else. changed it anyway. — Feng, Nov 28 '16 at 19:49

score 0 · Answer 1 · answered Nov 28 '16 at 19:24

A regular dict does not track the insertion order, and iterating over it produces the values in an arbitrary order. In an OrderedDict, by contrast, the order the items are inserted is remembered and used when creating an iterator.

import collections


print 'Regular dictionary:'
d = {}
d['a'] = 'A'
d['b'] = 'B'
d['c'] = 'C'
d['d'] = 'D'
d['e'] = 'E'

for k, v in d.items():
   print k, v

print '\nOrderedDict:'
d = collections.OrderedDict()
d['a'] = 'A'
d['b'] = 'B'
d['c'] = 'C'
d['d'] = 'D'
d['e'] = 'E'


for k, v in d.items():

 print k, v

The output will be :

Regular dictionary:
a A
c C
b B
e E
d D

OrderedDict:

a A
b B
c C
d D
e E

actually i do not want to specify values for each key and sub-keys. that is going to be pain. — Feng, Nov 28 '16 at 19:46
actually I was explaining the concept behind it. the mikeqfu's answer is better — Amin Etesamian, Nov 28 '16 at 19:51

score -1 · Answer 2 · edited May 23 '17 at 12:13

-1

You may just try:

from collections import OrderedDict

ordered_body = OrderedDict(body)

The order of keys in ordered_body should remain the same as specified. I think this post explains OrderedDict very clearly.

edited May 23 '17 at 12:13

Community

1
1

answered Nov 28 '16 at 19:23

mikeqfu

329
2
10

@AminEtesamian, did you try it? if i try to print ordered_body, i still got the result in a random order. – Feng Nov 28 '16 at 20:35
check the accepted answer here: http://stackoverflow.com/questions/15711755/converting-dict-to-ordereddict – Amin Etesamian Nov 28 '16 at 21:05

How can i pass the requests body in the original order when the body dictionary is declared in python

2 Answers2