# dynamic variable help **URL:** \ **Category:** Ansible Project\ **Created:** [May 20, 2021, 10:43am UTC](https://forum.ansible.com/t/dynamic-variable-help/35202 "2021-05-20T10:43:07Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Manoj\_Chander](https://avatars.discourse-cdn.com/v4/letter/m/71c47a/32.png) [@Manoj\_Chander](https://forum.ansible.com/u/Manoj_Chander)\ **Post date:** [May 20, 2021, 10:43am UTC](https://forum.ansible.com/t/dynamic-variable-help/35202/1 "2021-05-20T10:43:07Z")
Hi , Im a newbie learnig ansible .im stuck with the below _I need to get input from user and based on input dynamically create a url ._ _input group1 is a single value and group2 is a list_ _using with\_items and loop im able to create variable but couldnt register it and pass it to get\_url module . below is one of my failed attempts ._ _ansible-playbook -e “app\_name=group1 or app\_name=group2 …”_ ---
**Author:** ![Andre\_Liebigt](https://avatars.discourse-cdn.com/v4/letter/a/c6cbf5/32.png) [@Andre\_Liebigt](https://forum.ansible.com/u/Andre_Liebigt)\ **Post date:** [May 21, 2021, 6:09am UTC](https://forum.ansible.com/t/dynamic-variable-help/35202/2 "2021-05-21T06:09:29Z")
Hi, for this to work artifacturl always needs to be a list. A first attempt could look like this: ---
**Author:** ![Manoj\_Chander](https://avatars.discourse-cdn.com/v4/letter/m/71c47a/32.png) [@Manoj\_Chander](https://forum.ansible.com/u/Manoj_Chander)\ **Post date:** [May 24, 2021, 1:46pm UTC](https://forum.ansible.com/t/dynamic-variable-help/35202/3 "2021-05-24T13:46:54Z")
Greetings André, Thanks you so much for ur time. The above solution works but i have some 100 jars to download . Is it possible to set\_fact in a loop store the constructed variable in a list and pass it to **get\_url** method . ---
**Author:** ![racke](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/racke/32/4767_2.png) [@racke](https://forum.ansible.com/u/racke)\ **Post date:** [May 24, 2021, 3:55pm UTC](https://forum.ansible.com/t/dynamic-variable-help/35202/4 "2021-05-24T15:55:48Z")
> Greetings André, > > Thanks you so much for ur time. > > The above solution works but i have some 100 jars to download . > > Is it possible to set\_fact in a loop store the constructed variable in a list and pass it to \*get\_url\* method . > > --- > - include\_vars: > file: vars.yml > - set\_fact: > b\_url: http://{{item}}/sr/pr/ > # jar is a list in vars.yml > loop: "{{ jars }}" > register: b\_url > - debug: > msg: "no of sites are ==\> {{ b\_url }} " > - name: Container Checks > block: > - name: download "{{file }}" > get\_url: > url: "{{ item }}" > dest: "/manual/jar/" > loop: {{b\_url}} Hello Manoj, 1) Using register in a set\_fact task doesn't make sense, as set\_fact is supposed to set the    variables. 2) Do you really need to use set\_fact?   - name: download "{{file }}"     get\_url:       url: "http://{{item}}/sr/pr/"       dest: "/manual/jar/"     loop: "{{ jars }}" Regards          Racke > regards, > Manoj > >     Hi, > >     for this to work artifacturl always needs to be a list. A first attempt could look like this: > >     \*---\* >     \*- name: Block to Deploy on Servers\* >     \* block:\* >     \* - set\_fact:\* >     \* artifact\_url: "[https://my.url/>"\](https://my.url/>"%5C)\* >     \* - set\_fact:\* >     \* >     \* >     \* group\_id: "{% if app\_name == 'group1' %}/com/connectors/{% elif app\_name == 'group2' %}\* >     \* /com/connectors/{% else %}/com/services/{% endif %}"\* >     \* register: group\_id \* >     \* \* >     \* - set\_fact:\* >     \* artifacturls: \* >     \* - "{ artifact\_url }}{{ group\_id }}jar1/{{ app\_version }}/{{ item }}-{{ app\_version }}.jar"\* >     \* \*\*- "{ artifact\_url }}{{ group\_id }}jar2/{{ app\_version }}/{{ item }}-{{ app\_version }}.jar"\* >     \* when: app\_name == group2\* >     \* \* >     \*\* >     \* - set\_fact:\* >     \* artifacturls: \* >     \* - "{ artifact\_url }}{{ group\_id }}{{ app\_name }}/{{ app\_version }}/{{ app\_name }}-{{ app\_version }}.jar"\* >     \* when: app\_name != group2\* > >     /pass the constructed variable to another block / > >     \*- name: Block to get file "{{app\_name}}"\* >     \* block:\* >     \* - name: download "{{app\_name}}" form url\* >     \* get\_url:\* >     \* url: "{{ item }}"\* >     \* dest: "/manual/{{ app\_name }}.jar"\* >     \* loop:\* >     \* - {{ artifacturls }}\* > >     This leads to a bit of duplication for group2 which could be omitted by a more complex construct like this: > >     \* - set\_fact:\* >     \* artifacturls: "({{ artifact\_urls | default()) + {{ artifact\_url }}{{ group\_id }}{{ item }}/{{ >     app\_version }}/{{ item }}-{{ app\_version }}.jar"\* >     \* when: app\_name == group2\* >     \* loop:\* >     \* - jar1\* >     \* - jar2 \* >     \* >     \* > >     Hope that helps,\* >     \* >     André > >         Hi , > >         Im a newbie learnig ansible .im stuck with the below > >         /I need to get input from user and based on input dynamically create a url ./ >         / >         / >         /input group1 is a single value and group2 is a list / >         / >         / >         /using with\_items and loop im able to create variable but couldnt register it and pass it to get\_url module . ---
**Author:** ![Manoj\_Chander](https://avatars.discourse-cdn.com/v4/letter/m/71c47a/32.png) [@Manoj\_Chander](https://forum.ansible.com/u/Manoj_Chander)\ **Post date:** [May 30, 2021, 7:27am UTC](https://forum.ansible.com/t/dynamic-variable-help/35202/5 "2021-05-30T07:27:05Z")
Hi racker, Yeah I understood ,I finally found a way to use loop and loop\_var to build my list of variable and download them . Thanks for Ur help really appreciate it . Regards, Mano