Postgres read jsonb content from stdin - Mailing list pgsql-general

From Markur Sens
Subject Postgres read jsonb content from stdin
Date
Msg-id CALF9P6pXPFFX7y1uHwf+GtGSQ=mNDxY4u_3EJcg2698nJT5uMw@mail.gmail.com
Whole thread Raw
Responses Re: Postgres read jsonb content from stdin  (Ian Lawrence Barwick <barwick@gmail.com>)
Re: Postgres read jsonb content from stdin  (B Anderson <bricklen@gmail.com>)
List pgsql-general
Hello,

I'm trying to build a few data pipelines with Unix tools but can't figure out how to insert in a slurp mode (e.g. not COPY line by line) content inside a variable.

Consider the following script (using a heredoc)

json_url="https://....file.json"
local_file="/tmp/a.json"

curl -s -m 10 -A 'Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0' \
    --max-redirs 0 -o ${local_file} ${json_url}

psql "$PG_URI" -qAt <<SQL
create table if not exists (data jsonb);

insert into my_table(data) values (pg_read_file('${local_file}')::jsonb)
on conflict do nothing;
SQL

The question is, how can I achieve the same result, without having to hit the disk due. to the temporary file.
I tried running by using pg_read_file('/dev/stdin')::jsonb

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